That headline is highly exaggerated.
No spray, homemade mixture, or garden trick can reliably burn weeds in 1 day and ensure they never grow again. Weeds are persistent because many have:
- Deep root systems
- Underground runners
- Seeds that remain viable in soil for years
What these viral posts usually recommend
Vinegar
- Can burn the leaves quickly
- Works best on small, young weeds
- Usually does not kill the roots, so regrowth is common
Boiling water
- Can kill weeds in cracks in driveways or patios
- Often doesn’t reach deep roots in soil
Salt
- May kill weeds, but it also damages the soil
- Can prevent desirable plants from growing later
Dish soap mixtures
- Helps sprays stick to leaves
- Doesn’t provide lasting weed control by itself
What works better long-term
- Pulling weeds with as much root as possible
- Applying mulch to block sunlight
- Removing weeds before they produce seeds
- Using appropriate herbicides when needed and following label instructions
Bottom line
A weed may look dead within a day, but that doesn’t mean it’s gone forever. Claims that weeds will “never grow again” are usually marketing hype rather than reality.
